An unusual round church in London with a Templar past.

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

Rich with fauna and flora, nature-lovers can walk across the sea at this UNESCO World Heritage spot.

Twisted buildings adorn the banks of the Rhine river.

This futuristic German television spire is actually the world's largest digital clock.

On the highest peak in the Harz Mountains, science and the occult faced off in a failed attempt to turn a goat into a boy.

Goethe's "Faust" was inspired by these rock formations known as the "Devil's Pulpit" and "Witches' Altar."

The first recognized Neanderthal remains were found in this now-lost cave in 1856.

This "floating railway" is one of the world's oldest monorail systems.

The monumental home of Prussia’s eccentric "Cannon King."

This former steel and coal plant is now a neon-lit industrial fantasia.

Take a walk in a recreation of ancient Rome.

A staggering collection of satellite models and actual flight parts.

The Bauhaus-style former industrial complex is considered the world's most beautiful coal mine.

This massive steel pyramid can be entered by a set of jagged steps that let visitors stand in its heart.

A collection of antique telescopes dot the halls of the university's astrophysics department.

Dancing skeletal figures pay homage to a medieval mural destroyed during World War II.

A stunning two-story timepiece within a medieval Brick Gothic church.